How to show up a print dialog box

[Jason - Polydiam.com]

I'm trying to print an image to a specified paper size; 8"x10".

  

 

set the printRotated to true

 

  open printing with dialog

  

  print stack "Target" into 15,15,400,400

    

  close printing 

 

but it does not show the print dialog box (so a user can change the paper
size)

anyone know how to get it to show the print dialog box and still print into
the specified coordinates on the paper (and landscape)

Thanks

 

Jason